Nozomi Networks
Nozomi Networks provides OT and IoT security solutions for critical infrastructure, offering asset visibility and threat detection.
- Categories
- OT and ICS security, IoT, embedded and product security, Network detection and response, Vulnerability management
- Based in
- San Francisco, United States
- Ownership
- Owned by Mitsubishi Electric since 2025
- Certifications
- ISO 27001, ISO 9001, SOC 2 Type II, SOC 3
About Nozomi Networks
Nozomi Networks provides cybersecurity for operational technology and internet of things environments. It sells a platform that combines continuous monitoring with artificial intelligence to give asset visibility from the endpoint to the air. The platform helps organisations identify critical assets and vulnerabilities, detect security threats and process anomalies, and respond quickly to cyber risks. It is purpose-built for industrial, commercial and critical infrastructure settings. The company serves many sectors, including airports, electric utilities, healthcare, manufacturing, maritime, mining, oil and gas, pharmaceutical, rail, retail, smart cities, and water and wastewater. It also works with federal government and data centres. Its platform is delivered through certified partners and its own professional services. Nozomi Networks says it monitors over 102 million devices across more than 11,000 installations and reports 100 percent customer retention.
Products
- GuardianA network sensor that provides asset discovery and wired network monitoring for OT and IoT settings.
- Guardian AirA sensor that monitors the wireless spectrum in operational environments.
- ArcA host-based endpoint sensor that detects and prevents threats on OT endpoints and can also act as a lightweight network sensor.
- Arc EmbeddedA security sensor embedded inside industrial controllers to provide visibility at Purdue levels 0-1.
- Remote CollectorLow-resource sensors that gather asset and network data from remote locations.
- VantageA central management console for the platform.
Ownership and deals
- Mitsubishi Electric acquired Nozomi Networks for $883mReport on Mitsubishi Electric buying Nozomi Networks (opens in a new tab)
- Raised private equity fundingInvestor Partners GroupReport on the Nozomi Networks funding round of July 2025 (opens in a new tab)
- Raised $100m in a Series E roundInvestors Mitsubishi Electric and Schneider ElectricReport on the Nozomi Networks funding round of March 2024 (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.